LSZH HFFR Building Wire 450/750V WDZ-BYJ For Safer Indoor Wiring

WDZ-BYJ LSZH Flame-Retardant Building Wire

WDZ-BYJ is a single-core low-smoke halogen-free (LSZH) flame-retardant building cable designed for indoor fixed wiring with high requirements for fire safety, smoke reduction, and reduced corrosive gas emissions. It is commonly used in commercial buildings, public facilities, high-rise residential buildings, and industrial buildings where wiring routes need to pass through shafts, corridors, cable trays, and conduit systems to ensure safer evacuation conditions and reduce secondary damage to equipment in the event of a fire.

For cross-border buyers and tender projects, WDZ-BYJ is positioned as an upgraded product with a greater emphasis on safety than ordinary PVC building cables, especially suitable for public buildings and electrical installations with high compliance requirements.

Common Specifications Overview

Reasons Buyers Choose WDZ-BYJ

• Low smoke and halogen-free, ensuring safer evacuation and lower secondary current. Damage

  Low Smoke Halogen-Free (LSZH) wiring systems are typically used to reduce smoke concentration and corrosive gases, improve visibility, and help protect sensitive equipment in the event of a fire.

• Flame-retardant design ensures safer wiring paths

  Flame retardancy helps limit the spread of flames along wiring paths, ensuring the safety of shafts, cable trays, and concealed wiring.

• Cross-linked insulation ensures stable operating performance

  BYJ type cross-linked insulation is widely used in building wiring due to its thermal stability and long-term reliability in fixed installations.

• Professional wiring layout and easy identification

  Single-core specifications help ensure neat and orderly wiring on distribution panels; multiple colors are available, simplifying phase sequence identification and maintenance.

• Suitable for public buildings and high-occupancy projects

  Commonly used in hospitals, schools, shopping malls, stadiums, transportation facilities, and large commercial buildings where higher fire resistance is required.

Typical Applications

• Indoor Building Wiring (Conduits and Cable Trays)
• Risers and Shafts in High-Rise Buildings
• Switchboards and Sub-Switchboards in Commercial Buildings
• Public Facilities and High-Density Areas
• Equipment Rooms and Service Corridors Requiring Safer Cable Wiring
• Fixed Cabling in Industrial Buildings Requiring Low Smoke Halogen-Free (LSZH)

Process and Manufacturing Notes

1. Copper Conductor Preparation

   Copper is drawn to the required diameter and then manufactured into solid or stranded conductors according to dimensions and standards.

2. Insulation Extrusion and Crosslinking

   A halogen-free, flame-retardant insulation layer is extruded and crosslinked to form a stable insulation layer suitable for building wiring.

3. Coloring and Surface Control

   The insulation layer is colored in standard colors for easy circuit identification, and surface controls are applied to ensure smooth wire routing in conduits and cable trays.

4. Printing and Marking

   Dimensions, voltage ratings, and batch information are printed on the wires to support traceability and project management.

5. Routine Testing and Quality Control

   Typical inspection items include conductor resistance, insulation thickness, spark testing, and voltage testing, all performed according to applicable standards.

Structure

• Conductor: Copper (solid or stranded, depending on size/specification)
• Insulation: Halogen-free flame-retardant cross-linked compound (LSZH/HFFR type, depending on specification)
• Wire Type: Single-core building wire, typical BYJ structure without outer sheath
• Installation: Indoor fixed installation, placed in conduit/cable tray/enclosed circuit

Specification Table

Selection Guide

If your project requires indoor fixed wiring in public areas or high-traffic environments, and requires low-smoke halogen-free (LSZH) and flame-retardant building wires, please select WDZ-BYJ.

Choose WDZ-BYJ when your project requires LSZH and flame-retardant building wire for indoor fixed wiring in public or high-occupancy environments. Select cross-section based on load current, circuit length, grouping, ambient temperature, and voltage drop limits.

Using color coding can reduce wiring errors and speed up commissioning.

For sheathed, armored, or underground installations, select sheathed or armored cables specifically designed for that environment.

Quick Inquiry Template

• Product: WDZ-BYJ
• Rated Voltage: 450/750V
• Cross-sectional Area: __ mm²
• Color: __
• Quantity: __ meters per size
• Packaging: Reel/Spool/Bottle
• Application: Building wiring/Conduit/Cable tray/Distribution panel wiring
• Required Standard: __
• Destination: Country and port
• Trade Terms: FOB/CIF/Other
• Special Requirements: Mixed packaging, private labeling, printing, inspection documentation

FAQ

What is WDZ-BYJ used for?

WDZ-BYJ is used for indoor fixed wiring, especially suitable for locations requiring low smoke, halogen-free, and flame-retardant properties, such as building shafts, corridors, and concealed wiring.

What is the difference between WDZ-BYJ and PVC building wiring?

WDZ-BYJ uses halogen-free flame-retardant cross-linked insulation material, which effectively reduces the generation of smoke and corrosive gases compared to standard PVC insulation.

Is WDZ-BYJ suitable for conduits and cable trays?

Yes. It is commonly used in building electrical distribution and distribution panel wiring, and is frequently used in conduits and cable trays.

What is the typical rated voltage?

450/750V is a common rated voltage for this type of building wiring. Please select according to local standards and project requirements.

How to choose the appropriate specification?

Select based on load current, line length, grouping, ambient temperature, and allowable voltage drop. Please provide your circuit details to confirm the appropriate specification.

Can you provide mixed color and mixed specification wires?

Yes. We can provide mixed color and mixed specification wires for contractors and distributors.

Service of JinHong Company

Packaging of JinHong:

JinHong cable packaging is provided in the form of wooden reels, corrugated boxes, and coils. The cable ends are sealed with BOPP self-adhesive tape and a non-hygroscopic sealing cap to protect the cable ends from moisture. We can print the required marks on the outside of the barrel with waterproof material according to customer requirements.